LTC5508 datasheet(2/12 Pages) LINER

Part #	LTC5508

Description	800MHz to 1.5GHz Direct Conversion Quadrature Demodulator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LT5516

2

5516f

Power Supply Voltage ............................................ 5.5V

Enable Voltage ...................................................... 0, VCC

LO+ to LO– Differential Voltage ...............................

±2V

(+10dBm Equivalent)

RF+ to RF– Differential Voltage ................................

±2V

(+10dBm Equivalent)

Operating Ambient Temperature ..............–40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 125°C

Maximum Junction Temperature .......................... 125

°C

ORDER PART

NUMBER

Consult LTC Marketing for parts specified with wider operating temperature ranges.

LT5516EUF

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

TA = 25°C. VCC = 5V, EN = high, fRF1 = 899.9MHz, fRF2 = 900.1MHz,

fLO = 901MHz, PLO = –10dBm unless otherwise noted. (Notes 2, 3) (Test circuit shown in Figure 2)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Frequency Range

0.8 to 1.5

GHz

LO Power

–13 to – 2

dBm

Conversion Gain

Voltage Gain, Load Impedance = 1k

2

4.3

dB

Conversion Gain Variation vs Temperature

– 40

°C to 85°C

0.01

dB/

°C

Noise Figure

R1 = 8.2

Ω

11.4

dB

R1 = 3.3

Ω, PLO = –5dBm

12.8

dB

Input 3rd Order Intercept

2-Tone, –10dBm/Tone,

R1 = 8.2

Ω

17.0

dBm

∆f = 200kHz

R1 = 3.3

Ω, PLO = –5dBm

21.5

dBm

Input 2nd Order Intercept

Input = –10dBm

R1 = 8.2

Ω

46.0

dBm

R1 = 3.3

Ω, PLO = –5dBm

52.0

dBm

Input 1dB Compression

R1 = 8.2

Ω

6.6

dBm

Baseband Bandwidth

260

MHz

I/Q Gain Mismatch

(Note 4)

0.2

0.7

dB

I/Q Phase Mismatch

(Note 4)

1

degree

Output Impedance

Differential

120

Ω

LO to RF Leakage

– 65

dBm

RF to LO Isolation

57

dB

AC ELECTRICAL CHARACTERISTICS

16 15 14 13

5

6

7

8

TOP VIEW

UF PACKAGE

16-LEAD (4mm

× 4mm) PLASTIC QFN

9

10

11

12

4

3

2

1

GND

RF+

RF

–

GND

VCC

LO–

LO+

VCC

EXPOSED PAD IS GROUND

(MUST BE SOLDERED TO PCB)

TJMAX = 125°C, θJA = 38°C/W

UF PART

MARKING

5516

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